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000
FXUS65 KREV 190902
AFDREV

Area Forecast Discussion
National Weather Service Reno NV
202 AM PDT Fri Apr 19 2024

.SYNOPSIS...
Above average highs in the 60s for Sierra communities and 70s for
lower valleys today. A few valleys may see highs surpass 80
degrees this weekend into Monday. Isolated shower chances near
the Sierra this afternoon, otherwise dry weather remains through
the weekend. Increased shower chances return next week.

&&

.DISCUSSION...

Above average temperatures will be with us through early next week,
increasing snowmelt on slopes and stream flows on area rivers and
streams. See the Hydrology section below for more details on the
warm weather affecting area waterways. Just how warm will we be? We
expect the Reno International Airport to see their first shot at
temperatures above 80 degrees this weekend. Western Nevada valleys
will see high 70s to low 80s this weekend, while Sierra valleys will
see upper 60s to low 70s for daytime high temperatures.

These warmer days may have you seeking outdoor recreation, however
there is a chance (15-20%) to see an isolated thundershower for
Alpine and Mono counties this afternoon. Also a slight chance
(5-10%) of terrain driven showers near the Tahoe Basin today as
well, so keep your eyes to the skies if you are outside.

Morning clouds on Saturday will clear out and leave us with clearing
skies through the day, a great day to get outside and enjoy. Be sure
to wear sunscreen this weekend, as abundant sunshine will be with
us. Sunday we will see some clouds to the north, but another
stellar sunny day to enjoy is setting up.

This good weather train will keep rolling into early week before we
look ahead to more unsettled weather for midweek. A series of
troughs will approach the West Coast, reintroducing showers to our
forecast. Ensembles have yet to agree on the track and timing of
these low pressure circulations, which will determine where the
precipitation will land and how our temperatures will be impacted.
For now, we have 20-30% chances for showers across the Sierra and
western Nevada.

Looking beyond, our extended outlooks are signaling a wetter pattern
returning. Less clear will be how our temperatures shake out for the
end of April and beginning of May. HRICH

&&

.AVIATION...

* VFR conditions will prevail this weekend, although KTRK could see
  some patchy FZFG Saturday and Sunday mornings. Winds will be light
  with the exception of Saturday afternoon. Gusts of 20-25 kts will
  reach western Nevada valley terminals, while Sierra valley
  terminals may see gusts 15-20 kts.

* Showers and storms are anticipated along the Sierra from the
  Tahoe Basin to the south into Mono County. Chances for showers
  are 20-25% with the greatest threat for KMMH. Showers have a
  10-15% chance of containing lightning.HRICH

&&

.HYDROLOGY...

Above normal temperatures combined with mostly sunny skies will
increase snowmelt leading to minor to moderate rises in rivers and
creeks draining largely snow covered watersheds. While no flooding
is expected in the area, many waterways will be running cold and
fast, with gradually increasing flows into early next week. The
West Fork of the Carson near Woodfords is expected to rise above
the action stage each night through Tuesday, but remain below
flood stage.

Rivers and streams draining mostly snow covered terrain below
about 7500 feet are likely to see their seasonal peaks by early
next week. Basins with significant higher elevation terrain will
retain plenty of snow for higher flows with subsequent warmups.The
Lower Humboldt is expected to have very high flows for many weeks
with minor flooding likely in May or June, or even into early
July.

Exercise caution around rivers and streams, remember mountain
rivers and streams often reach their highest levels from snowmelt
at night.
-TB

&&

.REV Watches/Warnings/Advisories...
NV...None.
CA...None.
&&

$$